AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-40906

MEDIUM · CVSS 6.1 EPSS 0.97% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-25 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-40906
Severity
MEDIUM
CVSS
6.1
EPSS
0.97%
Java

Original NVD Description

CheckMK Raw Edition software (versions 1.5.0 to 1.6.0) does not sanitise the input of a web service parameter that is in an unauthenticated zone. This Reflected XSS allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts) or to steal the session cookies of a user who has previously authenticated via a man in the middle. Successful exploitation requires access to the web service resource without authentication.